29Cu

Copper

Transition Metal

Copper (Cu) is element 29, a transition metal, in period 4 and group 11 of the periodic table. Its standard atomic weight is 63.546, it melts at 1084.62 °C and boils at 2562 °C. It has been known since antiquity.

Atomic Number29

SymbolCu

NameCopper

Atomic Weight63.546 u

CategoryTransition Metal

Period4

Group11

Melting Point1084.62 °C

Boiling Point2562 °C

Density8.96 g/cm³

Electron Config[Ar] 3d10 4s1

Discovered ByKnown since antiquity

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